Digital Panel Meters AP142 AP-142 Voltage meters 4.5 digits 14.2 mm LED 200mV


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Digital Panel Meters
Standard 4.5 digit DC Voltage BCD output

Digital panel meters from Asahi Keiki
offer impressive specifications, reliability
and low cost for a variety of applications


AP-142	Features BCD option Standard 4.5 digit Bright 14.2 mm red LED Powered by DC 5V, AC 110, 230V 200mV - 200V, measurement +/- 700V measurement option

Specifications AP142

Input Configuration	Single ended
Input Bias Current	100 pA
Conversion Rate	2.5 /sec
Normal mode rejection	More than 50dB (50/60Hz)
Zero Stability	Automatic Zero Adjustment
Display	LED 14.2 mm 4 1/2 digit
Polarity	"-" automatic
Decimal point	Set to any position
Over-range indication	When input exceeds max "0000" flashes
Power Supply	AC 90 - 132V AC 180 - 260V DC 5 Volts +/-5% 170 mA max.
Operation temperature	0~ 50 C, 35 - 85% RH
Power Consumption	2 VA
Dimension mm H x W x D	48 x 96 x 73 mm DIN size
Weight	Approx 190 g AC version, 125 g DC version
Dielectric Strength	AC type ~ between input (lo) terminal and ground DC 500 V, between power supply terminal and input terminal, ground, common and case AC 1500 Volts for 1 min. DC type ~ Between input lo and power supply (0), DC 500 V
Insulation Resistance	DC 500V 100 M Ohm at above terminals

DC Voltage Measurement

Accuracy +/- 0.03% of reading +/- 1 digit (23 C +/-5 C )

Model Range Maximum Resolution Input Impedance Input Protection

AP-142-11 +/- 199.99 mV 100 uV 100 MOhm +/- 250 V

AP-142-12 +/- 1.9999 V 100 uV 1 MOhm +/- 250 V

AP-142-13 +/- 19.999 V 1 mV 1 MOhm +/- 250 V

AP-142-14 +/- 199.99 V 10 mV 1 MOhm +/- 500 V

AP-142-15 +/- 700 V

BCD Data Output (isolated from input (lo))

At Open Collector
Measured Data	negative logic transistor 'on' at logic '1'
Polarity Signal	transistor 'ON' at plus input
"Over" Signal	"1" level at overflow input
Printing command signal	Transistor on for approx 1 ms at every measurement completion
Transistor output capacity	Applied voltage 30V max, current 10mA max saturated output voltage less than 1.2 V at 10 mA
At TTL level
Measured Data	Tri state parallel BCD positive logic latch output
Polarity signal	"1" level at plus input
Over signal	"1" level at overflow input
Printing command signal	Positive pulse of ~1 mS at every measurement completion
	TTL level fanout=2 5 V CMOS
	Each signal above can be changed to negative logic

Click on diagram for a larger image

Ordering Information

AP-142-xx-XY	Use the part numbers xx above for the range, 12, 13, 14 .. and add the following final characters to designate the 'X' power supply and Y to designate output option
	Power Supply
X Affix 1	AC 90 to 132 V
X Affix 2	AC 180 to 264 V
X Affix 3	5V DC isolated
	Output
Y Affix 1	none	$180.00
Y Affix 2	BCD ( TTL )	$265.00
Y Affix 3	BCD ( Open collector )	$265.00

Topac Inc. 231 CJC Highway, Suite 103 Cohasset MA 02025 USA
Tel: 781 740 8778 Fax: 781 740 8779
e-mail: sales@topac.com

Model	Range	Maximum Resolution	Input Impedance	Input Protection
AP-142-11	+/- 199.99 mV	100 uV	100 MOhm	+/- 250 V
AP-142-12	+/- 1.9999 V	100 uV	1 MOhm	+/- 250 V
AP-142-13	+/- 19.999 V	1 mV	1 MOhm	+/- 250 V
AP-142-14	+/- 199.99 V	10 mV	1 MOhm	+/- 500 V
AP-142-15	+/- 700 V