Omega Vehicle Security CN3271 Series manual Inputs Thermocouple, Linear Inputs

INPUTS

A) THERMOCOUPLE

Type : J, K, T, E, N, S, R, B, L, U, G(W), D(W3), C(W5), Platinel II, °C/°F selectable.

External resistance: 100 Ω 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 MΩ

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

STANDARD RANGES TABLE

T/C				Ranges
type
J	0	-100 / 1000 °C			23	-150 / 1830		°F
K	1	-100 / 1370 °C			24	-150 / 2500		°F
T	2	-200 /	400	°C	25	-330 / 750		°F
E	3	-100 /	800	°C	26	-150 / 1470		°F
N	4	-100 / 1400 °C			27	-150 / 2550		°F
S	5	-50 / 1760 °C			28	-60 / 3200		°F
R	6	-50 / 1760 °C			29	-60 / 3200		°F
B	7	0 / 1820 °C			30	32	/ 3300	°F
L	8	-100 /	900	°C	31	-150 / 1650		°F
U	9	-200 /	600	°C	32	-330 / 1110		°F
G(W)	10	0 / 2300 °C			33	0	/ 4170	°F
D(W3)	11	0 / 2300 °C			34	0	/ 4170	°F
C(W5)	12	0 / 2300 °C			35	0	/ 4170	°F
P.(*)	13	-100 / 1400 °C			36	-150 / 2550		°F
(*) P. equal		to Platinel II

B)RTD (Resistance Temperature Detector) Input: for RTD Pt 100 Ω , 3 wire connection. Input circuit: current injection.

°C/°F selection: via front pushbuttons or serial link.

Line resistance: automatic compensation up to 20 Ω /wire with no measurable error.

Calibration: according to DIN 43760

Burn out : The instrument detect the open condition of one or more wires. It is able to detect also the short circuit of the sensor.

STANDARD RANGES TABLE

Input		Ranges
type
RTD Pt 100 Ω	14	- 200	/ 850	°C
DIN 43760	37	- 330	/ 1560	°F

C) LINEAR INPUTS

Read-out: keyboard programmable between -1999 and +9999.

Decimal point: programmable in any position

Burn out: the instrument shows the burn out condition as an underrange condition for 4-20 mA, 1-5 V and 2-10 V input types.

It shows the burn out condition as an underrange or an overrange condition (selectable by soldering jumper) for 0-60 mV and 12-60 mV input types. No indication are available for 0-20 mA, 0-5 V and 0-10 V input types.

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LHL-1-NEUTRO.pmd 22 19/04/2004, 15.07