Seaward DO5000 Series - Manual (Page 11)

Operating Instructions Microhmmeter Type DO5000
6
1.5.4 Temperature compensation
The accuracy of the temperature measurement is ±0.1% and uses a standard Pt100 sensor.
This accuracy does not include errors due to the sensor itself. The temperature measurement
range is 0…+40°C and the resistance measurement is referenced to 20°C when this option is
used.
1.5.5 Conditions of use
The instrument must be used inside, in a horizontal position
Temperature
Storage: -10°C…+60°C
Operation: 0°C…+45°C
Full accuracy is achieved after 10 minutes warm-up and for a relative humidity <50%
Altitude: up to 2000 metres
Maximum humidity rate: 80% for a temperature of 31°C
1.5.6 Lead resistance
A maximum lead resistance which may be calculated as 0.5 Ω/measuring current is permissible
in each of the four measuring leads. The display will indicate if the current lead resistance is
too high.
“**** MEASURENT ERROR Current lead resistance too high ****”
1.5.7 Mains supply
Universal power inlet: Maximum Power consumption 250VA 45/65Hz
1.5.8 Battery Operation DO5001
Two rechargeable sealed lead acid batteries are fitted internally together with the battery
charging circuits. The chargers will maintain the batteries in good condition automatically
adjusting the charge rate to suit the battery state. Full measurement capability is maintained
whilst batteries are charging.
Battery Capacity
Digital: 11 hours continued use with display backlight on
Analogue: Over 6000 simple measurements in fast mode with 10A measuring current.
Approx. 3000 measurements slow mode.
1.5.9 Weight and Size
Size:
147 x 357 x 345 mm (H W D)
Weight: 9.8 kg (DO5000)
12.2 kg (DO5001)
8.15 kg (DO5002)
q q
q q
q
Nominal Voltage Voltage Range Frequency Fuse Type
115 V 103…127 V 47…63 Hz 2.5A (T)
230 V 207…253 V 47…63 Hz 1.25A (T)
6.3
3.15