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24508 E - 2

Digital Megohmmeter - 13615 Technical Data

Calibration resistances for the device testingModel series 1270

Resistance measurement range: 50 k ... 10 T divided in 8 measurement rangesMeasurement accuracy: 2.5 % of value ±1 digit Current range: 9 pA ... 10 mA divided in 8 measurement rangesMeasurement accuracy: 2.5 % of value ± 1 digit Measurement voltage: 45 V, 100 V, 250 V, 500 V (other voltages upon request)Measurement time: freely selectable up to 999 s Max. current in measurement circuit: 5 mA Measurement range selection: manual or automatic Measurement connections: BNC (red) measurement voltage BNC (black) measurement input 4 mm ø socket (blue) guard 4 mm ø socket (green) groundDisplay: two line LCD display measurement value 3 digits with unitLimit value indicator: potential-free relay output (max. 48 V, 1 A)External measurement start: via potential-free contact Interface: RS232 with 9 pin Sub Min D socket Operating temperature range: 0 °C ... 45 °C Storage temperature: - 20 °C ... + 70 °C Supply voltage: 230 V ± 10 % 50 Hz Device security: acc. to standard EN 61010-1 Power:
6 ... 10
8 - 0.02 %/V 10
9 ... 10
12 - 0.04 %/V 10
13 ... 10
14 Construction: metal housing with PVC cover Dimensions: 36 x 30 x 90 [mm] Net weight: approx. 70 g Model Resistance value Accuracy category 1270 10
6 1 % 1271 10
7 1 % 1272 10
8 1 % 1273 10
9 1 % 1274 10
10 1 % 1275 10
11 1 % 1276 10
12 5 % 1277 10
13 5 % 1278 10
14 10 %

DKD Calibration

The calibration resistor model 1270 can be supplied with a DKD certi cate (German calibration service). The documented measurement results and tolerances are captured with standards and measurement instruments that are subject to regular comparison to the national standards of the Federal Rep. of Germany. The veri cation by the appointed state authorities is shown in the certi cate itself as well as the calibration sign which is placed on the device.

Order Information

Digital Megohmmeter Model 24508

incl. measurement leads 1 m length

Model 12DKD-1270

Accessories WKS Calibration

Measurement leads 3 m length Model 24508-Z001 The manufacturer test certi cate (WKS) includes the proof of trace-ability for national standards as well as protocolling of measurement results and uncertainties. DKD Calibration Certi cate Model 24DKD-24508 WKS Calibration Certi cate Model 24WKS-24508

Model 12WKS-1270

Guard ring electrodes for the measurements of surface or volume resistances on request

Application Guard Circuit

The guard connection is exempli� ed by a guard ring electrode. Depending on the connection wiring the RESISTOMAT
® 24508 makes it possible to determinate the surface or volume resistance of the test sample.For the determination of the surface resistance the measuring electrode is connected to the “-“input, the guard ring is connected with the “+” input and the basic electrode is connected with the guard input.For the determination of the volume resistance the measuring electrode is connected with the “+”input, the guard ring with the guard input and the basic electrode is connected with the “-“input. air gap
123-024508EN-5072-031511 4
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