Page 17 - HIOKI 2017 Field Measuring Instruments

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■ Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year) Clamp meters
*Representative figures are provided for basic accuracy. For more detailed information, please refer to the individual product catalogs.

Model 3291-50 3280-10F 3280-20F 3281 3282

Basic specifications

AC measurement system True RMS MEAN Value True RMS True RMS True RMS

Display refresh rate 1.1 sec or less 400 ms 4 times/s (FAST), 1 time/3s (SLOW), 4 times/s (bar graph)
Display backlight function 4 N/A
Core jaw diameter N/A N/A
φ 30 mm (1.18 in) φ 33 mm (1.30 in)
φ 33 mm (1.30 in) φ 46 mm (1.81 in)

Safety standard category CAT IV 300 V V : CAT III 300 V V : CAT IV 600 V CAT IV 600 V
CAT III 600 V A : CAT IV 300 V A : CAT III 600 V

Max. rated voltage to earth 600 Vrms 600 Vrms 600 Vrms

Crest factor 2.8 or less (up to 600 A) N/A 2.5 or less 2.5 or less 2.5 or less
1.68 or less (up to 1000 A) (1.5 or less at 4200 counts) (1.7 at 600 A, 1.7 at 600 V) (1.7 at 1000 A, 1.7 at 600 V)
Measurement range
DC current N/A N/A N/A N/A
Basic accuracy -- -- --
AC current --
(Frequency characteristics) 60.00/ 600.0/ 1000 A
(45 to 400 Hz) 42.00/ 420.0/ 1000 A 42.00/ 420.0/ 1000 A 30.00/ 300.0/ 600 A 30.00/ 300.0/ 1000 A
Basic accuracy (40 to 1 kHz) (40 to 1 kHz)
50/60 Hz, filter ON: (50/60 Hz) (40 Hz to 1 kHz)
±1.5 %rdg.± 5 dgt.
50/60 Hz: 45-66 Hz: 45-66 Hz:
±1.0 %rdg.± 5 dgt.
±1.5 %rdg. ±5 dgt. ±1.5 %rdg. ±5 dgt.

DC voltage N/A 420.0 mV N/A N/A
4.200/ 42.00/ 420.0/ 600 V

Basic accuracy -- ±1.0 %rdg. ±3 dgt. -- --
AC voltage N/A
(Frequency characteristics) -- 4.200/ 42.00/ 420.0/ 600 V 300.0/ 600 V (40 to 1 kHz)
Basic accuracy (45 to 500 Hz)
45-66 Hz: ±1.0 %rdg.± 3 dgt.
Resistance N/A 45-66 Hz: ±1.8 %rdg. ±7 dgt.
1000 Ω/ 10.00 kΩ
Basic accuracy -- 420.0 Ω/ 4.200 k/ 42.00 k/ 420.0 kΩ
Frequency 4.200 M/ 42.00 MΩ ±1.5 %rdg. ±5 dgt.
Basic accuracy N/A ±2.0 %rdg. ±4 dgt. 100.0/ 1000Hz (Auto)
--
N/A ±0.3 %rdg.± 1 dgt.
Continuity check N/A -- 4
(beep sound) --
4 30 Ω or less

Less than 50 Ω ±40 Ω

Functions

Auto power off 4 Auto power save 4
4 4
Data hold 4

Maximum/ minimum/ Max value display N/A 4
average value record (displays the maximum measured values
function reached since the power has been turned on)

Peak value display N/A N/A 4

Low pass filter ON/OFF 4 (fc=180 Hz) N/A N/A

Dustproof and waterproof N/A IP40 (EN60529) IP40 (EN60529)

Power supply Coin type lithium battery CR2032×1 Coin type lithium battery CR2032×1 Stacked manganese battery 6F22×1

Continuous operating time 20 hours 120 hours 70 hours 45 hours

Dimensions and mass 50 mm (1.97 in) W × 136 mm (5.35 in) 57 mm (2.24 in) W × 175 mm (6.89 in) H × 62 mm (2.44 in) W × 216.5 mm (8.52 62 mm (2.44 in) W × 231 mm (9.09 in)
in) H × 39 mm (1.54 in) D, H × 39 mm (1.54 in) D, 400 g (14.1 oz)
H × 26 mm (1.02 in) D, 115 g (4.1 oz) 16 mm (0.63 in) D, 100 g (3.5 oz) 350 g (12.3 oz)

New insulated sleeves prevent short-circuits Conforms to safety standard
IEC61010-031 (revised) for hand-held probes
No sleeves attached to the tip of test leads? With sleeve attached to the tip of test leads,
What are the new and additional requirements of the
DANGER of short-circuit accident!! short-circuit accidents can be prevented. international safety standards?
1. "Exposed metal part must be 4mm or shorter" (Previously, 19mm max.)
Previous NEW!
model s for CAT III and IV environments to prevent short-circuits from occurring.
s 2. Double-coating with different colors enables you to identify the wear

condition of the test leads. (Previously, single-coated)

Accessories : TEST LEAD L9208/ L9207-10/ L9207-30/ DT4911 Sleeve attached No sleeve attached

CAT IV 600 V When the CAT (measurement category) CAT III, CAT IV CAT II
Sleeve attached rating of the main unit is lower than that
of test leads, the CAT of the main unit Sleeve Detachable!
No sleeve at- CAT III 1000 V takes precedence. When measuring in
tached included as a When a sleeve is not attached,
a CAT IV or CAT III environment, be sure standard accessory the test leads can only be used
CAT II 1000 V to attach the sleeve to the test leads. (This sleeve cannot in a CAT II environment.
be attached to
previous products)