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The CZ3000MKIII is a Direct Reading Bridge that has an additional Smart-Locate feature. The Smart-Locate test is a variation of the Murray Bridge which allows for the determination of the fault position even when no "good" conductors are present in the cable being tested.
The instrument has been engineered for reliable performance in tough conditions combining a microprocessor and precision analogue circuitry to provide fast and accurate measurement to the fault location. Factory options include wire gauge pre-programming, imperial or metric display, 120V or 250V Insulation Resistance (IR) test voltage, and multiple language support.
Self-test inbuilt terminals allow the operator to verify the performance of the instrument at any time. |
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Key Features and Functions… |
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- Fault & Insulation Resistance measurements up to 50 Mohm (independent of foreign battery)
- Light weight & easy to handle (0.61kg)
- User defined wire gauge support
- Self test facility
- Multi-gauge mode up to 20 sections
- Accuracy in the present of foreign voltage
- Continuous update mode every second
- Foreign battery measurement
- 2 or 3 wire length & locate measurements
- Direct entry of known line length
- Storage and retrieval of the last 8 measurements
- Smart Locate - without the need of a good wire
- Foreign Language support
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| SMART-LOCATE MEASUREMENT CONDITIONS |
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Previously, a good conductor would be required to perform the fault location. This would require taking another customer out of service, or rolling out a known good length of wire over the test distance. No longer is this required. Smart locate assumes that the pair is faulted in the one location, requires one leg to be twice as good as the other, and the fault resistance of two legs must be at least 100 times greater than the line resistance. In practical terms these conditions will nearly always be met. |
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Press FAULT/ON
The
instrument will automatically perform a line test, and display the line
condition, fault resistance, and foreign battery voltage.
Press MEASURE LENGTH
The
instrument will calculate the resistive length of the wire.
Alternatively, if the length is known, it can be entered using ENTER
LENGTH function.
Press LOCATE
The
instrument will display distance to fault, and distance from fault to
strap together with the total length of the selective wire gauge.
Press r or s
The
instrument can remember and display all of the parameters of the eight
most recent fault location measurements. This information eliminates
the traditional need for recording measurements. |
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| Temperature
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Operating: -10°C to +50°C.
Storage: -20°C to +70°C.
Compensation adjustment 0.2°C increments. |
| Fault resistance |
Range: 0 to 50 Mohm
Resolution: 0.01 Mohm
Accuracy: +/-1%, +/-0.01 Mohm |
| Insulation breakdown voltage & test current
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Voltage: Nominal 250V (or 120V optional)
Test current: Nominal 100uA
Tolerance: +/-6% |
| Length measurement
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Modes: 2 wire and 3 wire (auto detect)
Range: 0 to 2000 Ohm loop resistance
Accuracy: 0.2%, +/-0.2 Ohm, +/-1count |
| Fault locate |
Range: 1000 Ohm line / 2000 Ohm loop
Resolution: 0.01 Ohm or 1 meter
Accuracy: +/-0.3% of length, +/-0.2 Ohm,
+/- 1 count |
| Battery |
Type: One 9V Alkaline, IEC type 6LR61 or equiv.
Life: Approx. 40 hours |
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| CATV Meter: Signal Level Meter GAO2002 - Order Information:
Please let us know what are your specific requirements when you decide to place orders
1. Channel Plan: Channel No./ Video Frequency / Audio Frequency
2. RF-connector: F connector / BNC Connector / Both
3. Fix Collocate: Imperial / Metric
4. Charger Model: European / US
5. Rubber Bumper: Yes / No
6. Level Units: dBuV / dBmV |
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