Fluke 1503 Insulation Tester
Introduction:
The Fluke model 1507 and model 1503 are battery-powered insulation testers (the Tester). Although this manual describes the operation of both Models 1507 and 1503, all illustrations and examples assume use of model 1507.
These Testers meet IEC 61010 standards. The IEC 61010-2-030 standard defines three measurement categories (CAT II to IV) based on the magnitude of danger from transient impulses. CAT IV Testers are designed to protect against transients from the primary supply level (overhead or underground utility service).
The Tester measures or tests the following:
- AC / DC Voltage
- Earth-Bond Resistance
- Insulation Resistance
| Maximum Voltage between any
Terminal and Earth |
600 V |
| Storage Temperature | -40 °C to 60 °C |
| Operating Temperature | -20 °C to 55 °C |
| Temperature Coefficient | 0.05 x (specified accuracy) per °C for temperatures <18 °C or >28 °C |
| Relative Humidity | Noncondensing
0 % to 95 % @ 10 °C to 30 °C 0 % to 75 % @ 30 °C to 40 °C 0 % to 40 % @ 40 °C to 55 °C |
| Batteries | Four AA batteries (IEC LR6) |
| Size | 5.0 cm H x 10.0 cm W x 20.3 cm L (1.97 in H x 3.94 in W x 8.00 in L) |
| Weight | 550 g (1.2 lb) |
| Ingress Protection Rating | IEC 60529: IP40 |
| Altitude | Operating：2000 m
Storage：12 000 m |
| Over-Range Capability | 110 % of range |
| Accessories | TL224 Leads
TP74 Probes with Protective Caps Alligator Clips PN 1958654 (red) and PN 1958646 (black) Holster Remote Probe with Protective Cap |
| Safety | General：IEC 61010-1: Pollution Degree 2
Measurement：IEC 61010-2-030; CAT IV 600 V IEC 61010-031, IEC 61557-1, IEC 61557-2, IEC 61557-4, IEC 61557-10 |
AC/DC Voltage Measurement
| Accuracy | Range：600.0 V
Resolution：0.1 V 50 Hz to 400 Hz± (% of Rdg + Digits)：+ (2 % + 3) |
| Input Impedance | 3 MΩ (nominal), <100 pF |
| Common Mode Rejection Ratio
(1 kΩ unbalanced) |
>60 dB at dc, 50 Hz or 60 Hz |
| Overload Protection | 600 V rms or dc |
Earth-bond Resistance Measurement
| Range | Resolution | Accuracy
+ (% of Rdg + Digits) |
| 20.00 Ω | 0.01 Ω | + (1.5 % + 3) |
| 200.0 Ω | 0.1 Ω | + (1.5 % + 3) |
| 2000 Ω | 1 Ω | + (1.5 % + 3) |
| 20.00 kΩ | 0.01 kΩ | + (1.5 % + 3) |
Insulation Specifications
| Measurement Range | 0.01 MΩ to 10 GΩ model 1507, 0.01 MΩ to 2000 MΩ model 1503 |
| Test Voltages | 50, 100, 250, 500, 1000 V dc model 1507, 500 and 1000 V dc model 1503 |
| Test Voltage Accuracy | +20 %, -0 % |
| Short-Circuit Test Current | 1 mA nominal |
| Auto Discharge | Discharge time <0.5 second for C = 1 μF or less |
| Live Circuit Detection | Inhibit test if terminal voltage >30 V prior to initialization of test. |
| Maximum Capacitive Load | Operable with up to 1 μF load. |
Model 1507
| Output Voltage | Display Range | Resolution | Test Current | Accuracy
± ± (% of Rdg + Digits) |
| 50 V dc
(0 % to + 20 %) |
0.01 to 20.00 MΩ | 0.01 MΩ | 1 mA @ 50 kΩ | ± (3 % + 5) |
| 20.0 to 50.0 MΩ | 0.1 MΩ | |||
| 100 V dc
(0 % to + 20 %) |
0.01 to 20.00 MΩ | 0.01 MΩ | 1 mA @ 100 kΩ | ± (3 % + 5) |
| 20.0 to 100.0 MΩ | 0.1 MΩ | |||
| 250 V dc
(0 % to + 20 %) |
0.01 to 20.00 MΩ | 0.01 MΩ | 1 mA @ 250 kΩ | ± (1.5 % + 5) |
| 20.0 to 50.0 MΩ | 0.1 MΩ | |||
| 500 V dc
(0 % to + 20 %) |
0.01 to 200.00 MΩ | 0.01 MΩ | 1 mA @ 500 kΩ | ± (1.5 % + 5) |
| 20.0 to 200.0 MΩ | 0.1 MΩ | |||
| 200 to 500 MΩ | 1 MΩ | |||
| 1000 V dc
(0 % to + 20 %) |
0.1 to 200.00 MΩ | 0.1 MΩ | 1 mA @ 1MΩ | ± (1.5 % + 5) |
| 200 to 2000 MΩ | 1 MΩ | |||
| 2.0 to 10.0 GΩ | 0.1 GΩ | ± (10 % + 3) |
Model 1503
| Output Voltage | Display Range | Resolution | Test Current | Accuracy
± ± (% of Rdg + Digits) |
| 500 V dc
(0 % to + 20 %) |
0.01 to 20.00 MΩ | 0.01 MΩ | 1 mA @ 500 kΩ | ± (2.0 % + 5) |
| 20.0 to 200.0 MΩ | 0.1 MΩ | |||
| 200 to 500 MΩ | 1 MΩ | |||
| 1000 V dc
(0 % to + 20 %) |
0.1 to 200.00 MΩ | 0.1 MΩ | 1 mA @ 1MΩ | ± (2.0 % + 5) |
| 200 to 2000 MΩ | 1 MΩ |
