3
1. Technical specifications
Measuring ranges
Conductivity 0.1 µS/cm to 200 mS/cm
Salinity 0.0 mg/l to 278 g/l
Temperature --20 to 150 °C
Measuring error
Conductivity ≤1% (±1 digit)
Salinity 1% (±1 digit)
Temperature ≤0.5°C (±1 digit)
Reproducibility
Conductivity ±0.1% (±1 digit)
Salinity ±0.1% (±1 digit)
Temperature ±0.1°C (±1 digit)
Automatic temperature compensation
With Pt 1000 probe
By entering data on the keypad
Temperature coefficient, TC
Selectable between 0 and 5 % / °C
Reference temperature , RT
Selectable between 20 and 25 °C
Accepted cells
2-pole cell, constant between 0.05 and 50 cm-1
Recognised standards
147 µS/cm, 1413 µS/cm and 12.88 mS/cm
(25°C)
Calibration possibilities
With 1, 2 or 3 standards
Access code: 100
With possibility to readjust de conductivity value
Accepted calibration, 2 or 3 standars
Diference <30 % between the obtained cell
constants
Control mode
ON / OFF
A relay programmable as maximum or minimum
Activation relays lag 2 seconds
Language
English, German, Spanish, French, Italian, Portuguese
Display
Alphanumeric backlit LCD with 2 lines of 16
characters
Inputs and outputs
2 pole cell, terminal strip
Pt 1000 ATC, terminal strip
Analogic output, galvanically isolated:
• 4 to 20 mA for measurement (R máx. = 500 Ω)
• 21 mA or the last mA value measured for the
instrument in hold
• 22 mA for the alarm with option to deactivate it
Relay
1 limit relay, with no potential. NO contact
1 limit or cleaning relay, free of potential NO
Contact
1 alarm relay, with no potential. NC Contact
Maximum load:
in CA < 24 V / < 3 A / < 72 VA
Maximum cable length
≤25 m
Power supply
230 or 24 VAC ±10 %, 45-65 Hz,
(115 VAC under demand)
Consumption 4 VA
Protection: Class II
Overvoltage category: II
EC Directives
Electrical security according to 2006/95/EC
Electromagnetic compatibility according to
2004/108/EC
Environmental conditions
Working temperature: 0 to 50 °C (32 to 122 °F)
Storage temperature: –20 to 65 °C (–4 to 149 °F)
Relative humidity < 80 % (non condensing)
Max. height 2.000 m. at 230 V; 3.000 at 24 V
Enclosure
si629 C (wall mount): Thermoplastic material,
protection IP55. Flame rating HB
si629 C (panel mount): Noryl,
protection IP54. Flame rating FV-1
Weight
si629 C (wall mount): 700 g
si629 C (panel mount): 600 g
Dimensions
si629 C (wall mount):
105 x 170 x 100 mm (4 x 6.7 x 3.9 in.)
si629 C (panel mount):
96 x 96 x 100 mm (3.8 x 3.8 x 3.9 in.)
Warranty
Instruments: 2 years
Specifications are subject to change without notice.
ENGLISH
si629 C_HACH LANGE_Ed 0510.indd ANG:3si629 C_HACH LANGE_Ed 0510.indd ANG:3 20/5/10 12:06:4820/5/10 12:06:48
