CH24 External Power Supply

Name: CH24 External Power Supply
Brand: ICT International
SKU: CH24

Mains to Logger Power supply

AC Mains to 24 Volts DC power supply adapter for indoor powering of ICT International instruments.

The CH24 is a 100 – 240 Volts AC Mains to 24 Volts DC power supply adapter; capable of outputting up to 2.5Amps. It can power up 15 ICT Instruments continuously. The CH24 power supply has a stable, low ripple/noise output that is ideal for sensitive measurement systems. ICT Instruments require a 8 to 30 Volt DC power supply. The maximum battery charging external power draw set by the charge controller in a SFM1, PSY and VSL is 3.2 Watts. For the AML and HFD it is 6.8 Watts.

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SKU: CH24 Category: ICT International Brand: ICT International

The continuous power consumption by ICT Instruments is dependent upon many variables; e.g. for VSL & AML it is dependent on the number of sensors, type of sensors, if sensors are powered continuously and the logging interval of measurements. For a SFM1 the heat pulse and logging interval also affect the power consumption.

When ICT Instruments are fully charged the continuous external power draw is approximately 0.9 Watts for the SFM1, PSY1 and VSL loggers.

The CH24 includes standard a 4.5metre total cable length from the power supply body to the bare wire end for DC 24volt connection.

The CH24 is supplied with an IEC C13 power cable specific to common power socket types:

CH24 AU for Australia
CH24 EU for Europe (excluding UK and Ireland)
CH24 US for North America and other markets that use the same plug

UK market are available on request.

Technical Details

Output	DC Voltage	24V
	Rated Current	2.5A
	Current Range	0 – 2.5A
	Rated Power (max.)	60W
	Ripple and Noise (max.)	180mVp-p
	Voltage Tolerance	±3%
	Line Regulation	±1%
	Load Regulation	±3%
	Setup, Rise Time	1000ms, 30ms / 230VAC; 1000ms, 30ms / 115VAC at full load
	Hold Up Time (Typ.)	50ms/230VAC; 15ms/115VAC at full load
Input	Voltage Range	90 – 264VAC; 135 – 370VDC
	Frequency Range	47 – 63Hz
	Efficiency (Typ.)	90%
	AC Current (Typ.)	1.4A/115VAC; A/230VAC
	Inrush Current (max.)	65A/230VAC
	Leakage Current (max.)	0.75mA/240VAC
Protection	Overload	105 – 150% rated output power
	Over Voltage	25.2 – 32.4V
	Over Temperature	Shut down output voltage, re-power on to recover
Environment	Working Temp.	-30 to +60°C
	Working Humidity	20 to 90% RH Non-Condensing
	Storage Temp., Humidity	-40 to +85°C, 10 to 95% RH
	Temp. Coefficient	±0.03% / °C (0 to 40°C)
	Vibration	10 to 500Hz, 2G 10min./1 cycle, period for 60 min. each along X, Y, Z axes
Safety and EMC	Safety Standards	UL60950-1, CSA C22.2, TUV EN60950-1, BSMI CNS14336, CCC GB4943, PSE J60950-1 approved
	Withstand Voltage	I/P-O/P:3KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC
	Isolation Voltage	I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH
	EMC Emission	Compliance to EN55022 class B, EN61000-3-2,3, FCC PART 15 / CISPR22 class B, CNS13438 class B, GB9254, GB17625.1
	EMC Immunity	Compliance to EN61000-4-2,3,4,5,6,8,11, light industry level, criteria A
Others	MTBF	711K hours minimum (25°C)
Others	Dimensions	1255031.5mm (LWH)

Notes about the use of the CH24

ICT International recommend using a 24Volts DC power supply like the CH24 to recharge ICT International Instruments every 3 months to ensure longevity of internal batteries, if the instruments are stored for long and not operated.

PLEASE NOTE: If you connect the CH24 to permanently power an instrument, it is recommended to use a timer switch to cycle the battery charge, for instance 8-10h charge and the rest for discharge. Try to charge the instruments at night, and let them discharge during the day. You need the timer switch for SFM1, PSY1, HFD, VSL, but NOT for SFM1x.