87V EX
Calibration Manual
4
•
Do not use the Meter if it operates abnormally. Protection may be
impaired. When in doubt, have the Meter serviced.
•
Use only a single 9 volt battery, properly installed in the Meter case,
to power the Meter. See “Replacing the Battery” section for
instructions and a list of approved batteries.
•
Only use replacement parts listed in the “Parts” section of this
manual. Return the Meter to the manufacturer for all other service
needs.
•
When using probes, keep your fingers behind the probe’s finger
guards.
•
Do not use the Low Pass Filter option to verify the presence of
hazardous voltages. Voltages greater than what is indicated may be
present. First, make a voltage measurement without the filter to
detect the possible presence of hazardous voltage. Then select the
filter function.
•
Do not use in wet environments.
W
Caution
To avoid possible damage to the Meter or to the equipment
under test, follow these guidelines:
•
Disconnect circuit power and discharge all high-voltage capacitors
before testing resistance, continuity, diodes, or capacitance.
•
Use the proper terminals, function, and range for all measurements.
•
Before measuring current, check the Meter's fuses. (See "Fuse Test".)
•
Observe all safety regulations and read the certificate.
Ex-Certification Data
•
EC-type certificate no.: ZELM 05 ATEX 0274
•
Ex-designation:
(
II 2 G EEx ia IIC T4
Measuring range: 65 V Max in Ex-hazardous areas.
5 A Max. in Ex-hazardous areas
•
Power supply: 9 Volt block type, IEC 6LR61
•
Measuring protected electric circuits:
Voltage-Mass (V/ - COM):
Ui = 65 V Uo = 10.35 V
Co = 2.52 µF
Io = 4.0 mA.
Lo= 100 mH
Current-Mass (µA/mA & A - COM):
li = 5 A
Uo=2.8 V
Co = 1000 µF
Io = 68 mA
Lo = 8 mH.
•
Approved for Zones 2 and 1, device group II, gas group C potentially explosive
gases, vapours and mist, temperature class T4.
