Extech Instruments 48VFL, Инструкция по эксплуатации

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48VFL & 96VFL v1.2 07/13
Specifications
General Specifications
Display Dual 7-segment 4-digit LED: Red digits for Process Variable (PV) and green digits for
Setpoint Variable (SV)
Display range -1999 to 9999
Indicating accuracy ± (0.2% full scale + 1 digit)
Display update rate 4 readings per second
Output status indication Front panel Alarm (A1 and A2) and Control (C1 and C2) status LED’s inform the user when
an output switches on or off.
Out-of-range indication PV display flashes.
‘No input’ indication PV displays ‘OPEN’ when input terminals are disconnected.
Auto Tune indication Right-most decimal on the PV display flashes while the controller is in the auto tune mode.
Calibration data Stored in non-volatile memory along with user parameter edits.
Meter construction Case is ABS plastic and the front panel is drip- and dust-proof Lexan material (NEMA and
IEC IP55 equivalent)
Power requirement 90 to 264VAC 50/60Hz (automatically accommodates any voltage between 90 to 264VAC)
Power consumption < 5VA
Insulation Resistance > 50M

Noise rejection Common Mode: 120 dB; Normal Mode: 60 dB (typical)
Operating conditions 14 to 122
o
F (-10 to 50
o
C); 90% Relative Humidity max.
Storage temperature -4 to 140
o
F (-20 to 60
o
C)
Panel cut-out dimensions 1.77 x 1.77" ±0.02" (45.0 x 45.0mm ±0.5mm) for 48VFL
3.62 x 3.62" ±0.02" (92.0 x 92.0mm ±0.5mm) for 96VFL
Thermocouple Input Specifications
Thermocouple (TC) types J, K, T, E, B, R, S, N, and C (user programmable)
Temp. Indication Accuracy <1000 degrees ±3.6F (2.0C)
>1000 degrees ±7.6F (4.0C)
TC Break protect Upscale and Downscale
Lead wire effect 0.015% / ohm
Input impedance > 10M

Repeatability 0.83
o
C
Temperature stability 5uV/
o
C typical
TC Ranges Type K: -58 to 2498
o
F (-50 to 1370
o
C)
Type J: -58 to 1830
o
F (-50 to 1000
o
C)
Type B: 32 to 3272
o
F (0 to 1800
o
C)
Type T: -454 to 752
o
F (-270 to 400
o
C)
Type E: -58 to 1382
o
F (-50 to 750
o
C)
Type R: 32 to 3182
o
F (0 to 1750
o
C)
Type S: 32 to 3182
o
F (0 to 1750
o
C)
Type N: -58 to 2372
o
F (-50 to 1300
o
C)
Type C: -58 to 3272
o
F (-50 to 1800
o
C)
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