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8013362/1DQY/2021/10/12
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35
Operating
Instructions
PHT
7. Starting, operation
7. Starting, operation
Technical Data
PHT
Adjustability zero/span
5 % using potentiometers inside the instrument
1)
Response time (10 ... 90 %)
≤ 10 ms
Dielectric strength
500 V DC
2)
Accuracy
3)
≤
± 0.5 % of span, optional 0.25 % of span
(adjusted in vertical mounting position with process connection facing downwards)
Non-linearity
≤
± 0.2 % of span (BFSL) per IEC 61298-2
Non-repeatability
≤
± 0.1 % of span
1-year stability
≤
± 0.2 % of span (at reference conditions)
Permissible temperature ranges
■ Medium
4)
-20 ... +150°C
■ Ambient
4)
-20 ... +80°C
■ Storage
4)
-40 ... +100°C
Compensated temperature
range
0 ... +80 °C
Temperature coefficients
within compensated tempe-
rature range:
■ Mean TC of zero
≤ 0.2 % of span/ 10 K, with pressure ranges 0 ... 0.6 bar to 0 ... 25 bar
≤ 0.25 % of span/ 10 K, with pressure range 0 ... 0.4 bar
≤ 0.4 % of span/ 10 K, with pressure range 0 ... 0.25 bar
■ Mean TC of range
≤ 0.2 % of span/ 10 K
CE-conformity
■ EMC directive
2004/108/EEC, EN 61 326-2-3
1) Not with cable connections
2) NEC Class 02 power supply (low voltage and low current max. 100 VA even under fault conditions)
3) Including non-linearity, hysteresis, zero point and full scale error (corresponds to error of measurement per IEC 61298-2)
4) Also complies with EN 50178, Tab. 7, Operation (C) 4K4H, Storage (D) 1K4, Transport (E) 2K3