Chromalox 1604-7 user manual General Informations, General Specifications, Inputs Thermocouple

GENERAL INFORMATIONS

GENERAL SPECIFICATIONS

Case: Polycarbonate grey dark color; self-extin-

guishing 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).

(*)Test were performed in accordance with CEI 70- 1 and NEMA 250-1991 STD.

Installation: panel mounting.

Rear terminal block: 15 screw terminals ( screw M3, for cables from f 0.25 to f 2.5 mm2 or from AWG 22 to AWG 14 ) with connection diagrams and safety rear cover.

Dimensions: DIN 43700 48 x 48 mm, depth 122 mm.

Weight: 250 g. 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: 6 VA max.

Insulation resistance: > 100 MW according to IEC 1010-1.

Dielectric strength: 1500 V rms according to IEC 1010-1.

Display updating time: 500 ms.

Sampling time: 250 ms for linear inputs

500 ms for TC and RTD inputs. Resolution: 30000 counts.

Accuracy: + 0,2% f.s.v.. + 1 digit @ 25 °C ambient temperature.

Common mode rejection: 120 dB @ 50/60 Hz.

Normal mode rejection: 60 dB @ 50/60 Hz.

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 harmonized standard EN 61010-1). Installation category: II

Temperature drift: (CJ excluded)

<200 ppm/°C of span for mV and TC ranges 1, 3, 5, 7, 20, 21, 22, 24.

<300 ppm/°C of span for mA/V

<400 ppm/°C of span for RTD range 11, 28 and TC range 0, 2, 4, 6, 23.

<500 ppm/°C of span for RTD range 10 and TC ranges 8, 9, 25, 26.

<800 ppm/°C of span for RTD range 27. Operative temperature: from 0 to 50 °C. Storage temperature : -20 to +70 °C Humidity: from 20 % to 85% RH, non condensing. Protections:

1) WATCH DOG circuit for automatic restart.

2) DIP SWITCH for protection against tampering of configuration and calibration parameters.

INPUTS

A) THERMOCOUPLE

Type : L -J -K -N -R -S -T. °C/°F selectable.

External resistance: 100 W max, maximum error 0,1% of span.

Burn out: It is shown as an overrange condition (standard). It is possible to obtain an underrange indication by cut and short.

Cold junction: automatic compensation from 0 to 50 °C.

Cold junction accuracy : 0.1 °C/°C

Input impedance: > 1 MW

Calibration : according to IEC 584-1 and DIN 43710 - 1977.

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1604-7-1-AB.p65 27 5/16/00, 10:50 AM