Bender EDS3090/-91/-92/-96 series

Bender EDS3090/-91/-92/-96 series

Product Overview

Brand and positioning: The EDS3090/-91/-92/-96 series, launched by Bender GmbH in Germany, is a portable device that integrates "insulation fault location" and "residual current measurement". Its core positioning is as an electrical safety testing tool for industrial low-voltage systems (IT/TN/TT), featuring wide voltage coverage, dual-mode measurement, portability and easy operation. It is suitable for multiple scenarios such as main circuits, control circuits, photovoltaic systems, etc., meeting the needs of fault diagnosis in live/power-off states.

Series division and core differences:

|Series models | Adaptation scenarios | Core subtypes | Positioning current injector | Measurement clamp models | Rated voltage range|

|EDS3090 | Main Circuit | 3090/3090 PG/3090PG-13 | PGH185（230V）/PGH185-13（90-132V） | PSA3020（20mm）/PSA3052（52mm） | AC 20-575V/DC 20-504V（AGE185  Extended to AC 500-790V/DC 400-960V)|

|EDS3091 | Control Circuit | 3091/3091 PG/3091PG-13 | PGH183（230V）/PGH183-13（90-132V） | PSA3320（20mm）/PSA3352（52mm） | AC 20-265V/DC 20-308V |

|EDS3092PG | Main circuit+Control circuit | No subtypes | PGH183+PGH185 | PSA30 series+PSA33 series | Coverage of 3090+3091 voltage range|

|EDS3096 | Main Circuit+Photovoltaic System | 3096 PG/3096PG-13/3096PV | PGH186（230V）/PGH186-13（90-132V） | PSA3020/PSA3052（3096PV  Including 2 PSA3052) | AC 0-575V/DC 0-504V (supporting full pole isolation IT system)|

Detailed explanation of core components

EDS195P (M) Insulation Fault Locator (System Core)

Function: Switching measurement modes (insulation fault location/residual current measurement), data display and storage, parameter adjustment.

Key features: 3-line 16 character backlit LCD display screen, supporting HOLD data retention and RESET fault memory clearing; Only the "M" suffix model (EDS195PM) has an oscilloscope measurement signal output interface.

Power supply: 3 NiMH R6 AA rechargeable batteries (1.2V, ≥ 2000mAh, battery life ≤ 150h), 3 LR6 AA batteries, or powered through Micro USB interface (5V DC), power consumption ≤ 0.5W.

Protection and size: IP40 protection, ABS shell (UL94 V-0 flame retardant), size 84 × 197 × 30mm, weight ≤ 350g.

PGH18 series positioning current injector (positioning signal generation)

Model differences and parameters:

|Model | Adaptation Scenario | Power Supply Voltage | Maximum Positioning Current | Positioning Voltage (PGH186)|

|PGH183 | Control Circuit | 230V AC/90-132V AC (-13 subtype) | 1mA/2.5mA (optional) | -|

|PGH185 | Main Circuit | 230V AC/90-132V AC (-13 subtype) | 10mA/25mA (optional) | -|

|PGH186 | Main Circuit/Photovoltaic System | 230V AC/90-132V AC (-13 subtype) | 10mA/25mA (optional) | Built in 50V DC (suitable for power-off/low voltage systems)|

Operation: Includes ON/OFF switch, current gear switch, back with magnetic strip (attached to metal cabinet), equipped with running/current cycle indicator light.

Measurement pliers and couplers

Measuring pliers:

|Model | Jaw diameter | Adaptation scenario | Measurement range | Weight|

|PSA3020/PSA3320 | 20mm | Main circuit/control circuit | PSA30: 10A/10mA; PSA33：1A/0.1mA | ≤300g |

|PSA3052/PSA3352 | 52mm | Main circuit/control circuit | Corresponding model as above | ≤ 700g|

|PSA3165 | 115mm (optional) | Main circuit (thick cable) | 10A/10mA | ≤ 1300g|

|CTAF kit (optional) | Flexible strap (500/1000mm) | Narrow space/large-sized cable | 25mA-50mA | -|

AGE185 coupler (optional): expands the system voltage range to AC 500-790V/DC 400-960V, IP30 protection, weight ≤ 200g, size 88.5 × 42 × 21mm.

Key technical parameters and performance

Measurement performance parameters | Measurement mode | Measurement range | Adjustment accuracy | Frequency range || Insulation fault location (main circuit) | 2-10mA (response value adjustable) | ± 30%/± 2mA | AC 42-460Hz | Insulation fault location (control circuit) | 0.2-1mA (response value adjustable) | ± 30%/± 0.2mA | AC 42-460Hz | Residual current measurement (PSA30 series pliers) | 10mA-10A | 42-60Hz: ± 5%; 61-1000Hz: ± 20% | AC 42-1000Hz | | Residual current measurement (PSA33 series clamp) | 5mA-1A | Same accuracy as above | AC 42-1000Hz|

Environmental and safety parameters

Working temperature: -10 ℃~+55 ℃

Climate rating (IEC 60721): Station use 3K22, transportation 2K11, long-term storage 1K22

Mechanical grade (IEC 60721): Stationary use 3M11, transportation 2M4, long-term storage 1M12

Safety standards: comply with IEC 61010-2-030, DIN VDE 0100-410, EN 61557-9, etc

Protection level: Core component IP40, AGE185 coupler IP30

Operation and usage characteristics

Core operating mode

Insulation fault location mode (EDS mode): suitable for IT systems, generating location current through PGH18 injector, measuring clamp detecting current distribution to locate fault points.

Residual current measurement mode (RCM mode): suitable for TN/TT systems, directly measuring the residual current of the line. When it exceeds the set response value, the ALARM LED flashes.

Key operational functions

Menu adjustment: Select the type of measuring clamp, adjust the response value, and switch the display lighting through the control button.

Data management: Hold button to save measurement values, RESET button to clear fault memory, INFO button to view device information (model, software version, etc.).

Alarm indication: When the response value exceeds the limit, the ALARM LED flashes, and the LED stays on when the fault is cleared and the fault memory is activated.

Ordering and Delivery

Standard components: Each model includes EDS195PM locator, corresponding PGH injector, adaptive measuring pliers, USB power adapter+USB cable, aluminum chassis, and operation manual.

Optional accessories and codes:

|Accessory Name | Function Description | Accessory Code|

|AGE185 coupler | Extended voltage range | B980305|

|PSA3165 measuring pliers | 115mm large clamp, suitable for thick cables | B980852|

|CTAF Flexible Clamp Set | Includes 500/1000mm Flexible Tape, BNC Cable, etc. | B98080220|

|EDS-SET kit | BNC T-connector+2 BNC cables (diode isolation system fault location) | B91082007|

Model coding rule: Taking "EDS3096PG-13" as an example, "3096" is the basic model (main circuit+photovoltaic), "PG" indicates the presence of PGH186 injector, and "-13" indicates the supply voltage of 90-132V AC.

Key issues

Question 1: There is a clear distinction between the adaptation scenarios of different models of the EDS309 series. How to choose the appropriate model based on actual applications (main circuit/control circuit/photovoltaic system)?

Answer: The core selection criteria are "application scenario+system voltage+whether there is a built-in positioning current injector", and the specific logic is as follows:

Main circuit scenario (AC 20-575V/DC 20-504V):

The system has installed a positioning current injector/insulation monitoring device with injection function: select EDS3090 (without built-in injector).

System without injector: Choose EDS3090PG (230V power supply) or EDS3090PG-13 (90-132V power supply).

Photovoltaic system/fully isolated IT system/power outage system: EDS3096PG/PG-13 (including PGH186 injector, built-in 50V positioning voltage) is selected, and EDS3096PV is selected for photovoltaic specific use.

Control circuit scenario (AC 20-265V/DC 20-308V):

The system has installed an injector: select EDS3091; No injector: Choose EDS3091PG (230V) or EDS3091PG-13 (90-132V).

Need to cover both the main circuit and control circuit simultaneously: choose EDS3092PG (including PGH183+PGH185 dual injectors, compatible with two types of scene measurement pliers).

Question 2: Which power supply systems are the insulation fault location and residual current measurement functions of EDS309 series applicable to? What are the core measurement parameters and accuracy?

Answer: The functional adaptation system, core parameters, and accuracy are clearly distinguished as follows:

Measurement Function Adaptation System Core Measurement Parameters Measurement Accuracy

Insulation fault location IT system (live/power-off) response value: 2-10mA for main circuit (default 5mA), 0.2-1mA for control circuit (default 0.5mA); Positioning current: 0.2-25mA (adjustable with injector model) Main circuit: ± 30%/± 2mA; Control circuit: ± 30%/± 0.2mA

Residual current measurement TN/TT system (grounding system) measurement range: PSA30 series clamp 10mA-10A, PSA33 series clamp 5mA-1A; Response value: 10mA-10A (default 100mA) 42-60Hz: ± 5%; 61-1000Hz：±20%； Lag by 20%

Additional explanation: Insulation fault location needs to be used in conjunction with PGH series injectors, and residual current measurement can be directly achieved by connecting EDS195PM with measuring pliers. Both support frequency ranges of 42-460Hz (insulation location)/42-1000Hz (residual current).  

Question 3: What are the key operating precautions and accessory selection points when using EDS309 series equipment?

Answer: The key considerations and key points for selecting accessories are as follows:

Precautions for operation:

Voltage Expansion: When the system voltage exceeds AC 575V/DC 504V, it must be paired with AGE185 coupler, otherwise it may damage the equipment.

Measurement clamp matching: The main circuit requires PSA30 series clamps (maximum measurement 50mA), and the control circuit requires PSA33 series clamps (maximum measurement 5mA), which cannot be mixed.

Power supply and battery life: Prioritize using NiMH rechargeable batteries (battery life ≤ 150h), and remove the battery for long-term storage; USB power supply only supports 5V DC, avoid using non-standard adapters.

Safety regulations: Measurement must comply with CAT III (AC 600V)/CAT IV (AC 300V) level requirements and avoid use in corrosive gas and strong vibration environments.

Key points for accessory selection:

Large size cables/narrow spaces: Choose PSA3165 (115mm clamp) or CTAF flexible clamp set (500/1000mm flexible strap).

Fault location of diode isolation system: Additional EDS-SET kit (BNC T-shaped connector+dedicated cable) is required.

Oscilloscope linkage analysis: EDS195PM model (with measurement signal output interface) needs to be selected, paired with BNC-PS2 adapter cable.