Reference Conditions; Specifications - Chauvin Arnoux C.A 5003 Notice De Fonctionnement

4 VOLTAGE PRESENCE LIGHT (V > 15V) ON OHMMETER
If the "Voltest" light comes on. Unplug the leads and cut off the
voltage before making the resistance measurement.
5 FUNCTIONS SELECTION SWITCH

2 - REFERENCE CONDITIONS

Temperature : 22°C ± 2°K
Humidity : 45% RH ± 5%
Position : horizontal ± 2°
Before all measurement, be sure the needle is on zero. Otherwise, turn
the mechanical zero adjusting screw situated under the battery door
in order to do coincide the needle with the zero of upper black scale
(0.100).
Be sure the rotary switch is correctly positioned. When the order of
magnitude is not known, place the rotary switch on the highest range
then progressively lower to appropriate range : the reading must be
made, preferably, in the upper 2/3 of the scale.

3 - SPECIFICATIONS

DC VOLTAGES
I Connect the leads to the multimeter and connect in parallel to the
circuit to be tested.
I When the order of magnitude is not known, place the switch on the
highest range then progressively lower to the appropriate range.
I To get the voltage in V, multiply the value read on the appropriate
scale by the reading coefficient shown in the table.
V DC (1)
100 mV 1 V
Scale 100 100
Reading
(2)
x1 x0.01
coefficient
Internal
2 kΩ 20 kΩ 63.2 kΩ 200 kΩ 632 kΩ
(3)
resistance
(4)
Accuracy
Permitted
420 V
overload
(1) Common to the 50 µA DC range
(3) Specific R: 20 kΩ/V, except range 1000 V-R = 6.32 kΩ/V
(4) In % of the end of scale
12
Frequency : 45Hz to 65Hz
Intrinsic error : 0.3%
3 V 10 V 30 V 100 V 300 V 1000 V
30 100 30 100
x0.1 x0.1 x1 x1
2 MΩ 6.32 MΩ 6.32 MΩ
1.5 %
(5)
1000 V
(2) Direct reading in mV DC
(5) For 15 seconds
30 100
x10 x10
(5)
1500 V