10. Break Test. (a). Performance.
connect to terminals 2 and 3 of RELAY receptacle on
(1) Turn the FUNCTION switch to BREAK.
the unit under test.
(2) Meter M2 on the unit under test should indicate
(3) Turn the AC DRIVE control fully clockwise; then
offscale.
fully counterclockwise. Meter M1 on the unit under test
(3) Operate the TEST switch to the TEST position.
should indicate at least 9 and not more than 45
Meter M2 should indicate full-scale.
milliamperes (ma). Adjust the AC DRIVE control for an
b. Adjustments. With the TEST switch set to
indication of 40 ma on meter M1.
TEST, turn the ADJUST potentiometer for a full-scale
(4) Connect the ME-202/U to terminals on the
indication on meter M2.
decade resistance; the ME-202/U should indicate be-
11. Insulation Resistance. a. Performance.
tween 5.5 and 6.5 volts alternating current (ac).
(1) Set the FUNCTION switch to HIPOT.
(5) Set the DRIVE VOLTAGE switch to MED, and
(2) Connect the decade resistance set to 1,000
ohms to terminals 2 and 4 of RELAY receptacle.
(6) Turn the AC DRIVE control fully clockwise; then
(3) Connect the ME-202/U to the decade
fully counterclockwise. Meter M1 should indicate at
resistance.
least 5 and not more than 19 ma. Set for a 15-ma
(4) Operate the TEST switch to the TEST position.
indication.
The LEAK indicator should glow, and the ME-202/U
(7) The ME-202/U should indicate between 12.0
should indicate not more than 1 volt ac.
and 18.0 volts ac.
b. Adjustments. No adjustments can be made.
(8) Set the DRIVE VOLTAGE switch to HIGH and
12. Final Procedure. a. Deenergize and disconnect
all test equipment, and install the unit under test in its
(9) Turn the AC DRIVE control fully clockwise; then
protective cover.
fully counterclockwise. Meter M1 should indicate at
b. In accordance with TM 38-750, annotate and af-
least 1.5 ma and not more than 4.6 ma. Set for a 4-ma
indication.
System). When the unit under test cannot be adjusted
(10) The ME-202/U should indicate between 17.86
to within tolerance, annotate and affix DA Form 2417
and 19.74 volts ac.
(Unserviceable Test Instrument or Standard) (red tag).
b. Adjustments. No adjustments can be made.
By Order of the Secretary of the Army:
W. C. WESTMORELAND,
General United States Army,
Official:
Chief of Staff
KENNETH G. WICKHAM,
Major General, United States Army,
The Adjutant General.
Distribution:
Active Army:
USASA (2)
USAMUCOM (2)
USAINTS (3)
USACRREL (2)
CNGB (1)
USATECOM (2)
USATC Armor (2)
WRAMC (1)
ACSC-E (2)
USAWECOM (2)
USATC Inf (2)
Army Pic Cen (2)
Dir of Trans (1)
TOPOCOM (I)
USASTC (2)
USAMCC (10)
TSG (1)I
USAESC (70)
Army Dep (5) except
Redstone Arsenal (5)
CofSptS (1)
USMACV (50)
TEAD (55)
Frankford Arsenal (5)
CofEngrs (1)
MDW (1)
LEAD (50)
Sig FLDMS (2)
USAARENBD (2)
Armies (2)
SAAD (50)
Units org under fol TOE:- 2 ea. UNOINDC
USACDC Agcy (1)
Corps (2)
LBAD (40)
11-7
USAMC (5)
1st Cav Div (5)
TOAD (40)
11-57
USCONARC (5)
Instl (2) except
ANAD (35)
11-97
ARADCOM (5)
Ft Carson 19)
PUAD (30)
11-98
ARADCOM Rgn (2)
Ft Knox (12)
ATAD (10)
11-155
OS Maj Comd (4)
Ft Gordon (10)
Gen Dep(2)
11-157
LOGCOMD (2) except
Ft Huachuca ( 10)
Sig Sec, Gen Dep (5)
11-158
1st LOGCOMD (10)
WSMR (5)
Sig Dep (12)
11-500(AA-AC)
9th LOGCOMD (10)
Svc Colleges (2)
MAAG (2)
11-587
ULS.AMICOM (1)
USASESS (40)
USARMIS (2)
11-592
USASTRATCOM(4)
USAOC&S(40)
USAERDAA (2)
11-597
USAMECOM (2)
USASCS (20)
USAERDAW (5)
29-56
ARNG: State AG (3).
29-134 (10)
USAR: None.
U.S. GOVERNMENT PRINTING OFFICE 1994-300-421/00221
For explanation of abbreviations used, see AR 320-50.
818-721
4