Digital Panel Meters AM-164A AC Voltage and Current True RMS with Hi Low Comparator


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Digital Panel Meters
AC Voltage and Current
with Hi / Low Set point Comparator

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

	Discontinued 1/31/03
AM-164A	Features True R.M.S. *Small size* LED 10.0 mm Red High and Low Set Point Leading zero suppression BCD Analog Output (Option) AC 100mV ~ 700V, 100 uA~5A Measurement Power supply 110 or 230 V AC

Specifications

Input Configuration	Single Ended impedance approx 10MOhm
Rectifier Circuit	True RMS value is obtained in AC/DC converter in the analog operation method using transistor Vbe nlc
Conversion rate	2.5/sec
Response Speed	Approx 1 sec ( 10 ~ 90% )
Crest Factor	4:1 at full scale
Zero Stability	Automatic zero adjustment
Zero Display	Leading zero suppression
Display	LED 10 mm 4 digit
Decimal point	Set to any position
Over-range indication	When input exceeds 200% flash '0000'
Power Supply	AC90-132V AC 180-264V
Power consumption	max 40 mA @ 24VDC
Operation temperature	0~ 50 C, 35 - 85% RH
Dimension mm H x W x D	48 x 96 x 144 mm DIN size
Weight	Approx 480 gm
Dielectric Strength	Input (lo) and earth E, COM DC 500V Between power supply and input, earth, relay output 1500V AC 1 min
Insulation Resistance	DC 500V 100 MOhm at above terminals
Control System	8 bit microcomputer
Setting range	0-9999
Comparative conditions	Indication > High set point - HI High set point >/=indication>/=low set point - GO Indication < low set point - LO
Relay Contact Capacity	AC 250 V 0.1 A resistive load AC 120 V 0.5 A resistive load DC 28 V 1.0 A resistive load

AC Voltage Measurement
Accuracy
+/-0. 2% of reading +/- 20 digit (23degsC+/-5degs C)
+/- 0.3% of reading +/2- digit only for AM-164A-15

Model	Range		Input Impedance	Frequency Range	Input Protection
AM-164A-11	99.99 mV	Offset 0~9999 Full scale 0~9999	10 MOhm	30 Hz ~ 10KHz	10 V
AM-164A-12	999.9 mV		10 MOhm	30 Hz ~ 10KHz	100 V
AM-164A-13	9.999 V		10 MOhm	30 Hz ~ 10KHz	300 V
AM-164A-14	99.99 V		10 MOhm	30 Hz ~ 10KHz	700 V
AM-164A-15	700.0 V		10 MOhm	30 Hz ~ 10KHz	700 V

AC Current Measurement
Accuracy
+/-0. 5% of reading +/- 20 digit (23degsC+/-5degs C)
+/-0. 7% of reading +/- 20 digit (23degsC+/-5degs C for AM-164A-25 and AM-164A-26)

Model	Range		Internal Resistance	Frequency Range	Input Protection
AM-164A-21	99.99 uA	Offset 0~9999 Full scale 0~9999	1K Ohm	30 Hz ~ 10KHz	10 mA
AM-164A-22	999.9 uA		100 Ohm	30 Hz ~ 10KHz	50 mA
AM-164A-23	9.999 mA		10 Ohm	30 Hz ~ 4KHz	150 mA
AM-164A-24	99.99 mA		1 Ohm	30 Hz ~ 1KHz	500m A
AM-164A-25	999.9 mA A		0.1 Ohm	30 Hz ~ 1KHz	3 A
AM-164A-26	5.000 A		0.02 Ohm	40 Hz ~ 1KHz	8 A

BCD Data Output (isolated from input (lo))

At Open Collector
Measured Data	negative logic transistor 'on' at logic '1'
"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
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

Analog Output

Measured Data

0-1 Volt
"0.5% F.S (23 C+/-5C)
0.1 mV / digit
20 KOhms or more load

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Ordering Information

Construct part number as follows: AM-164A-xx-XY-ZW	Use the part numbers xx above for the range, 11, 12, 13, 14 .. and add the following final characters to designate the 'X' power supply, Y to designate output option, Z to designate the BCD type, and W to designate the comparator output type.
	Power Supply
X Affix 1	AC 90 to 132 V
X Affix 2	AC 180 to 264 V
	Output
Y Affix 1	none	$545.00
Y Affix 2	BCD	$650.00
Y Affix 3	Analog	$600.00
Y Affix 4	BCD Analog	$660.00
	BCD Type
Z Affix 1	none
Z Affix 2	TTL
Z Affix 3	Open Collector
	Comparator Output
W Affix 1	Relay
W Affix 2	Photo Coupler

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