Datakom DK-40 User Manual

DK-40 USER MANUAL V2.6 (02.08.2011)
K13D01-E - 17 -
6.3. SELECTION OF HOUR COUNTING METHOD
The unit offers the possibility of incrementing hour counters with a variable coefficient,
depending on air end temperature.
The use of variable coefficient is selected with P89 Variable Hour counting coefficient. If
this parameter is 0, all service and hour counters will increment with a fixed coefficient of
1.00.
If Variable Hour Counting is activated:
Running on load:
below 90 °C, coefficient = 1.00
between 90 and 95 °C, coefficient = 1.50
between 95 and 100 °C, coefficient = 2.00
above 100 °C, coefficient = 3.00
Running off load
below 90 °C, coefficient = 0.50
between 90 and 95 °C, coefficient = 0.75
between 95 and 100 °C, coefficient = 1.00
above 100 °C, coefficient = 1.50
These coefficients apply to both service and compressor
hour counters.

Datakom DK-40 Specifications

Power

supply voltage (IN-COMM to IN-400V)	305 – 460 VAC
supply voltage (IN-COMM to IN-230V)	175 - 275 VAC
supply frequency	50 - 60 Hz nominal
power consumption	< 4 VA

Measurement Inputs

voltage input range (L-L)	20 - 520 V AC
voltage input range (L-N)	10 - 300 V AC
frequency input range	30 - 100 Hz

Accuracy

voltage accuracy	0.5% + 1 digit
frequency accuracy	0.5% + 1 digit
voltage burden	< 0.1 VA per phase

Relay Outputs

relay output current	5 A
relay output voltage	250 V AC
external switch resistance	< 3 K-ohms

Inputs

pressure input range	4-20 mA (optional 0-10 V)
temperature input range	1000-5000 ohms
motor PTC input alarm threshold	2000 ohms

Operating Environment

operating temperature	-30°C to +80°C (-22°F to +176°F)
storage temperature	-40°C to +80°C (-40°F to +176°F)
maximum humidity	95% non-condensing

Physical Characteristics

degree of protection (front panel)	IP 54
degree of protection (back panel)	IP 30
dimensions	134x107x54 mm (WxHxD)