ero electronic MEMOCAL 2000 - Page 5

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Battery life: 24 hours (average) with Ni-MH batteries.
Recharging time: 12 hours
AC/DC adapter: input: from 100 to 250 V AC, 47 to 73 Hz, 100 mA.
output: 7.5 V, 1.2 A DC.
Insulation resistance: > 100 MW according to IEC 348.
Isolation voltage: 1500 V r.m.s. according to IEC 348.
Electromagnetic compatibility and safety requirements:
This instrument is marked CE.
Therefore, it is conforming to council directives 89/336/EEC
(reference harmonized standard EN 50081-2 and EN 50082-2) and
to council directives 73/23/EEC and 93/68/EEC (reference harmo-
nized standard EN 61010-1).
Installation category: II
D/A conversion: dual slope integration.
Resolution: + 20000 counts
Common mode rejection ratio: 120 dB @ 50/60 Hz.
Normal mode rejection ratio: 60 dB @ 50/60 Hz.
Sampling time: 500 ms.
Display update time: 500 ms.
Temperature drift: 0.0028 %/°C or 28 ppm/°C (CJ excluded).
Operating temperature: from 0 to +40 °C.
Storage temperature: from -10 to +60 °C.
Humidity : from 20% to 85 % RH non condensing.
Protections: WATCH DOG circuit for automatic restart.
1.2.2 INPUTS
A) THERMOCOUPLE MEASUREMENT
Type : B, E, J, K, L, N, Ni/Ni-18%Mo, PLII, R, S,T, U, W, W3 and
W5 keyboard programmable.
Engineering unit: °C or °F keyboard programmable.
Burn out : Detection of the open input circuit (wires or sensor) with
"OPEN" indication.
Cold junction: automatic compensation from 0 to 45 °C.
Cold junction compensation error: + 0.3 °C + 0.005 °C/°C
(+ 0.5°F + 0.005 °F/°F).
External cold junction compensation: programmable
- from -20 °C to +80 °C or -4.0 °F to 176.0 °F for TC type J, K, T,
E, R, S, U, L, PLII;
- from 0 °C to 80 °C or from 32 °F to 176 °F for TC type B, N, Ni/
Ni18%Mo, W, W3 and W5 ).
Input impedance:> 10 MW.
External resistance: 100 W max, maximum error 0,1% of span.
Calibration: according to IPTS-68 or ITS 90 programmable
Standard range table when the engineering unit is equal to °C
TC type
J
K
T
Max. Error (CJ excl.)
0.2 °C
0.3 °C
0.5 °C
0.3 °C
0.1 °C
RESOL.
0,1 °C
0,1 °C
< 0,2 °C
0,1 °C
0,1 °C
RANGE
-200°C to 1200 °C
-200°C to 967 °C
968°C to 1370 °C
-200°C to 0 °C
1°C to 400 °C
M20-e-1.p65 7/9/01, 2:39 PM5