172
Specifications
Specifications of PHU 3400(X) 110 Module
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pH/ORP input
Simultaneous measurement of pH and ORP
(Ex ia IIC)
with glass electrode or ISFET
Input for glass electrode or ISFET
Input for reference electrode
Input for redox (ORP) electrode or auxiliary electrode
Measuring range (MR)
pH value
-2.00 ... +16.00
ORP value
-2000 ... +2000 mV
rH value
0.0 ... 42.5
Adm. voltage ORP + pH [mV]
2000 mV
Adm. cable capacitance
< 2 nF
Glass electrode input
**
Input resistance
> 1 x 1012 Ω
Input current
< 1 x 10-12 A
****
Impedance range
0.5 ... 1000 MΩ
Reference electrode input
**
Input resistance
> 1 x 1010 Ω
Input current
< 1 x 10-10 A
****
Impedance range
0.5 ... 200 kΩ
Measurement error
***
pH value
< 0.02
TC < 0.001 pH/K
(display)
ORP value
< 1 mV TC < 0.05 mV/K
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Temperature input
Pt 100/Pt 1000/NTC 30 kΩ/NTC 8.55 kΩ
(Ex ia IIC)
2-wire connection, adjustable
Measuring range (MR)
-20 ... +150 °C (Pt 100 / Pt 1000 / NTC 30 kΩ)
-10 ... +130 °C (NTC 8.55 kΩ, Mitsubishi)
Resolution
0.1 °C
Measurement error
***
0.2 % meas.val. + 0.5 K (< 1 K with NTC > 100 °C)
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Temp compensation
Reference temp 25 °C
media-dependent
– Linear temperature coefficient,
user-defined from -19.99 to 19.99 % / K
– Ultrapure water 0 ... 150 °C
– Table 0 ... 95 °C, user-defined in 5 K steps
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Power output
for the operation of UNICAL 9000
(Ex ia IIC)
Vo = +7.2 V
Io = 200 mA
Ri = 20 Ω
Operating data: 6.8 V (±10%) / 15 mA
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ORP
*)
Automatic conversion to standard hydrogen electrode SHE
when type of reference electrode is entered
ORP sensor standardization
*)
Zero adjustable from -200 to +200 mV
Содержание Protos 3400
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Страница 177: ...177 Appendix Buffer Table Mettler Toledo ...
Страница 179: ...179 Appendix Buffer Table DIN 19267 ...
Страница 181: ...181 Appendix Buffer Table Techn Buffers to NIST ...
Страница 182: ...182 Appendix Buffer Table Hamilton ...
Страница 183: ...183 Appendix Buffer Table Kraft ...
Страница 184: ...184 Appendix Buffer Table Hamilton A ...
Страница 185: ...185 Appendix Buffer Table Hamilton B ...
Страница 186: ...186 Appendix Buffer Table HACH ...
Страница 206: ...206 Index ...
Страница 207: ...207 Index ...