ero electronic LDE - Technical Characteristics; Technical Specifications; Inputs

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7. TECHNICAL CHARACTERISTICS
7.1 TECHNICAL SPECIFICATIONS
Case: ABS grey (RAL 7043); self-extinguishing
degree: V-0 according to UL 94.
Front protection - designed and tested for
IP 65(*) and NEMA 4X for indoor locations (when
panel gasket is installed).
(*)
Tests were performed in accordance with CEI
70-1 and NEMA 250-1991.
Installation: panel mounting
Rear terminal block:15 screw terminals (screw
M3, for cables from φ 0.25 to φ 2.5 mm
2
or from
AWG 22 to AWG 14 ) with connection diagrams
and safety terminal block cover.
Dimensions: according to DIN43700 48 x 48 mm,
depth 105 mm.
Weight: 200 g max.
Power supply:
- 100V to 240V AC 50/60Hz (-15% to + 10% of
the nominal value).
- 24 V AC/DC (+ 10 % of the nominal value).
Power consumption: 9 VA max / 4 W.
Insulation voltage: 2300 V rms according to
EN 61010-1.
Display updating time: 500 ms.
Sampling time: 500 ms.
Resolution: 30000 counts.
Precision: + 0.3% v.f.s. + 1 digit @ 25°C of room
temperature.
Common mode rejection: 120 dB at 50/60 Hz.
Normal mode rejection: 60 dB at 50/60 Hz.
Electromagnetic compatibility and safety re-
quirements: This instrument conforms the direc-
tives EEC 89/336 (reference harmonized standard
CEI EN-61326
Emission requirements:
Class A for 24 V AC/DC power supply
(residential environment).
Class B – for 100/240V AC power supply
(industrial environment).
This instrument also conforms to directives
73/23/EEC and 93/68/EEC (reference harmonized
standard EN 61010-1).
Installation category: II
Pollution category: 2
Temperature drift:
< 200 ppm/°C (RJ excluded) for TC type L, J, K
and N.
< 400 ppm/°C for RTD input and input from
thermocouple T.
< 800 ppm/°C for RTD input with 1/10°C resolution
(model LME).
< 500 ppm/°C for RTD input with 1/10°C resolution
(model LDE).
Operating temperature: from 0 to 50°C (from 32
to 122°F).
Storage temperature: -30 to +70°C (-22 to
158°F)
Humidity: from 20 % to 85% RH, non condensing.
Protections:
1) WATCH DOG (hardware/software) for the
automatic restart.
A) THERMOCOUPLES
keypad.
Line resistance: max. 100 Ω with error <+0.1% of
the input span.
Engineering units: °C or °F programmable.
Reference junction: automatic compensation
from 0 to +50°C (from 32 to122°F).
Reference junction drift : 0.1°C/°C.
Burn-out: Up or down range selectable.
Calibration: according to IEC 584-1 and
lxe-1-B00.p65 10/18/02, 3:47 PM27
this product is not suitable for use
above 2000m (6562ft).
7.2 INPUTS
Altitude :
Type:
L, J, K, N, T programmable from the