PRECISION DIGITAL PD8-7000 Series, Инструкция по эксплуатации

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ProtEX-MAX PD8-7000 Explosion-Proof Temperature Meter Instruction Manual
7
Temperature Input
Inputs Thermocouple: J, K, T, E, R, S, B, N, C;
RTD: 100 Ω platinum (0.00385 & 0.00392
coefficients),
10 Ω copper, 120 Ω nickel, 1000 Ω platinum
(0.00385 & 0.00392 coefficients)
Cold
Junction
Reference
Automatic, fixed, no user calibration needed
Temperature
Drift

2

C maximum from 0 to 65

C ambient
temperature
 4  C maximum from -20 to 0  C ambient
temperature
Offset
Adjustment
User programmable offset adjust ±50.0
degrees. This parameter allows the user to
apply an offset value to the temperature
being displayed.
Input
Impedance
Greater than 100 k 
Sensor Break
Detection
Open TC or RTD sensor indicated by
display flashing
oPEn
,
relays can be programmed to go “On”, “Off”,
or to “Ignore” (Note: Ignore is detected as an
upscale condition).
Analog output goes to the programmed
sensor break value.
RTD
Averaging
Up to 10 RTDs connected in parallel can be
averaged.
Accuracy & Ranges
Type Range (°F) Accuracy Range (°C) Accuracy
J -200 to 2000 ±1.8°F -129 to 1093 ±1°C
K -200 to 2400 ±1.8°F -129 to 1316 ±1°C
T -200 to 752 ±1.8°F -129 to 400 ±1°C
E -200 to 1800 ±1.8°F -129 to 982 ±1°C
R -50 to 3000 ±3.6°F -46 to 1649 ±2°C
S -50 to 3000 ±3.6°F -46 to 1649 ±2°C
B 752 to 3300 ±3.6°F 400 to 1816 ±2°C
N -100 to 2300 ±3.6°F -73 to 1260 ±2°C
C 32 to 4100 ±3.6°F 0 to 2260 ±2°C
10  -328 to 500
±0.2°F -200 to 260 ±0.1°C
100

-328 to 1562 ±0.7°F -200 to 850 ±0.4°C
120  -110 to 500
±0.2°F -79 to 260 ±0.1°C
1000

-328 to 900
±0.7°F -200 to 482 ±0.4°C
Relays
Rating 2 or 4 SPDT (Form C) internal and/or 4
SPST (Form A) external; rated 3 A @ 30
VDC and 125/250 VAC resistive load; 1/14
HP (
≈
50 W) @ 125/250 VAC for inductive
loads
Noise
Suppression
Noise suppression is recommended for each
relay contact switching inductive loads; see
page 19 for details.
Deadband 0-100% of span, user programmable
High or Low
Alarm
User may program any alarm for high or low
trip point.
Unused alarm LEDs and relays may be
disabled (turn off).
Relay
Operation
Automatic (non-latching)
Latching (requires manual acknowledge)
Sampling (based on time)
Relay alternation control (2 to 4 relays)
Off (disable unused relays and enable
Interlock feature)
Manual on/off control mode
Relay Reset User selectable via front panel buttons or
digital inputs
1. Automatic reset only (non-latching),
when the input passes the reset point.
2. Aut manual reset at any time
(non-latching)
3. Manual reset only, at any time
(latching)
4. Manual reset only after alarm condition
has cleared (L)
Note: Front panel button or digital input may
be assigned to acknowledge relays
programmed for manual reset.
Time Delay 0 to 999.9 seconds, on & off relay time
delays
Programmable and independent for each
relay
Fail-Safe
Operation
Programmable and independent for each
relay.
Note: Relay coil is energized in non-alarm
condition.
In case of power failure, relay will go to
alarm state.
Auto
Initialization
When power is applied to the meter, relays
will reflect the state of the input to the meter.