Fluke 16 Service Manual

®

16

Multimeter with Temperature

Calibration Information

WWarning

To avoid electrical shock, remove test leads and any input signals from the Meter before opening the case.

Caution

This Meter contains parts that can be damaged by static discharge. Follow the standard practices for handling static sensitive devices.

Introduction

The 16 Calibration Information instruction sheet provides the information necessary to calibrate and verify the Fluke Model 16 Multimeter with Temperature (hereafter known as the Meter). This instruction sheet provides the following information:

∙Product specifications

∙Disassembly and reassembly

∙Performance test procedures

∙Calibration procedures and adjustments

∙Replacement parts

See the instruction sheet for operating instructions.

Service

The Meter is warranted to be free from defects in material and workmanship for one year. The complete warranty statement is in the Meter’s instruction sheet.

To contact Fluke, call one of the following telephone numbers:

USA and Canada: 1-888-99-FLUKE (1-888-993-5853)

Europe: [phone]

Japan: [phone]

Singapore: [phone]

Anywhere in the world: [phone]

Or, visit Fluke’s Web stie at www.fluke.com.

Specifications

Specifications are in Table 1. Accuracy is specified for a period of one year after calibration, at 18ºC to 28ºC (64ºF to 82ºF) with relative humidity to 90%. AC conversions are accoupled, average responding, and calibrated to the rms value of a sine wave input.

	Table 1. Specifications
Maximum Voltage Between any Terminal and Earth Ground (excludes 10% tolerance) 600 V ac or dc
Display	3-3/4-digits, 4000 counts, updates 4/sec
Operating Temperature	-10°C to 50°C
Storage Temperature	-30°C to 60°C indefinitely (to -40°C for 100 hrs)
Temperature Coefficient	0.1 x (specified accuracy)/°C (<18°C or >28°C)
Relative Humidity	0% to 90% (-10°C to 35°C)
	0% to 70% (35°C to 50°C)
Altitude Operation/Non-operation	2000 m
Battery Type	9V, NEDA 1604 or IEC 6F22
Battery Life	650 continuous hours with alkaline
	450 continuous hours with carbon-zinc
Shock, Vibration	3 meter drops: Sinusoidal vibration up to 3 G @ 55 Hz
Size (HxWxL)	1.35 in x 2.75 in x 5.55 in
	(3.46 cm x 7.05 cm x 14.23 cm)
Weight	10 oz (286g)
EMI Regulations	Complies with FCC Part 15B, Class B, EN50081-1, EN50082-1.
Safety	Designed to Protection Class II requirement of UL1244, ANSI/ISA-S82.01 - 1988, CSA C22.2 No 231,
	and VDE 0411, and IEC 1010-1 overvoltage category III (CAT III), 600 V
Certification	P $
PN 644226 July, 1997 Rev.1, 3/99
© 1997,1999 Fluke Corporation, All rights reserved. Printed in U.S.A. All product names are trademarks of their respective companies.		1

16

Multimeter with Temperature

Accuracy specifications are given as follows: ±([% of reading] + [number of least significant digits]).

Table 1. Specifications (cont)

Function

f

(50 to 400 Hz)

E

J

K

μ[

μ\

(50 to 400 Hz)

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Temperature

(Type K Thermocouple)

C2

Range		Resolution	Accuracy
	1	1 mV	±(1.9%+3)
4000 mV
4.000	V	0.001 V	±(1.9%+3)
40.00	V	0.01 V	±(1.9%+3)
300.0	V	0.1 V	NA
400.0	V	0.1 V	±(1.9%+3)
600.0	V	1 V	±(1.9%+3)
	1	1 mV	±(0.9%+2)
4000 mV
4.000	V	0.001 V	±(0.9%+2)
40.00	V	0.01 V	±(0.9%+1)
300.0	V	0.1 V	NA
400.0	V	0.1 V	±(0.9%+1)
600 V		1 V	±(0.9%+1)
400.0Ω		0.1Ω	±(0.9%+2)
4.000 kΩ		0.001 kΩ	±(0.9%+1)
40.00 kΩ		0.01 kΩ	±(0.9%+1)
400.0 kΩ		0.1 kΩ	±(0.9%+1)
4.000	MΩ	0.001 MΩ	±(0.9%+1)
40.00	MΩ	0.01 MΩ	±(1.5%+3)
1.000	μF	0.001 μF	±(1.9%+2)
10.00	μF	0.01 μF	±(1.9%+2)
100.0	μF	0.1 μF	±(1.9%+2)
1000 μF		1 μF	±(1.9%+2)
10000 μF		10 μF	±(10%+90)
			typical
0 to 200 μA		0.1 μA	±(1% + 2 counts)
0 to 200 μA		0.1 μA	±2% + 3 counts)
-10°C to 400°C		0.1°C	±(1% + 0.8°C)
14°F to 75°F		0.2°F	±(1% + 1.5°F)
-40°C to -10°C		0.1°C	±(5% + 1.5°C)
-40°F to 14°F		0.2°F	Typical
			±(5% + 3.3°F) Typical
2.000 V		0.001 V	±(0.9%+2)

1.The 4000 mV range can be entered only in the manual range mode. Use the 4000 mV range with accessories.

2.The beeper is guaranteed to come on at <25Ω and turn off at >250Ω. The Meter detects opens or shorts of 250 μs or longer.

3.Error does not include Type K Thermocouple errors.

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Specifications

Table 1. Specifications (cont)

Function	Overload	1	Input Impedance	Common Mode		Normal Mode
	Protection		(Nominal)	Rejection Ratio		2
					2	Rejection
				(1 kW Unbalanced)

	f	600 V dc	2
			>5 MW <100 pF
			Automatic Selection
			and LoZ = >2 kW
			<200 pF
			3
			(ac coupled)
	E	600 V dc	2
			>10 MW <100 pF
			Automatic Selection
			and LoZ = >2 kW
			<200 pF3
			Open Circuit Test
			Voltage
	J	600 V dc	<1.5 V dc
	L	600 V dc	2.4-3.0 V dc
	2
			Burden Voltage
	μ[	600 V rms or dc	<5 mV/mA
	μ\	600 V rms or dc	<5 mV/mA

>60 dB at dc 50 Hz or 60 Hz

>100 dB at dc, 50 Hz or 60 Hz

Full Scale Voltage

To 4.0 MW	40 MW
<450 mV dc	<1.5 V dc

2.400 V dc

Common Mode Rejection

Ratio

>100 dB @ dc 50 Hz or 60 Hz

>60 dB at dc, 50 Hz or 60 Hz

>50 dB at 50 Hz or 60 Hz

Short Circuit

Current

<500 mA

0.95 mA (typical)

Normal Mode

Rejection

>50 dB @ 50 Hz or 60 Hz

.

1.3 x 106 V Hz maximum.

2.~2 kW input impedance up to 50 V. Impedance increases with input voltage to >300 kW at 600 V.

MIN MAX Recording Accuracy and Response Time

Specified accuracy of the measurement function ±12 digits in dc for changes >200 ms in duration (±40 digits in ac). Typical 100 ms response to 80%.

Example 1: this would mean ±1.2° when recording temperature.

Example 2: This would mean ±12 mA when recording mA or ±12 A if used with a dc amp probe.

MIN MAX Recording with Elapsed Time

Elapsed Time: 0 to 100 hours (99.59)

Resolution: 1 minute

Accuracy: 0.3% typical

Continuity Captureä

Detects opens or shorts of 250 ms or longer.

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16

Multimeter with Temperature

Disassembly and Reassembly

Referring to Figure 1, disassemble the Meter as follows. A Phillips-head screwdriver and small flat-blade screwdriver are required.

1.Remove the test leads and set the rotary knob to OFF.

2.Remove the Phillips-head screws from the case bottom.

3.Separate the case top from the case bottom.

4.To replace the battery: lift the battery from the case bottom and insert a new 9V battery. Be sure the positive and negative battery posts are oriented correctly.

5.To remove the pca: insert a small, flat-blade screwdriver between the edge of the case top and the pca where shown in Figure 2. Gently unsnap a side of the case top from the pca. Repeat on the other side of the pca. Unsnap the case from the top of the pca last.

Lift the pca from the case top by its edges. If the elastomeric contact strips for the switch assembly and LCD are stuck to the pca, remove them without touching the conductive edges.

Note

Before reinserting the pca, make sure that the rotary knob is in the OFF position.

7.To reinsert the pca: Place the pca over the four screw posts in the case top, then press gently on the center of the pca while using the small flat-edge screwdriver to shoehorn the pca under the snap on a side of the case top. Repeat on the other side and the top.

8.To remove the switch support, use a small, flat-blade screwdriver to gently unsnap the sides and top of the switch support from the snaps shown in Figure 2.

9.The LCD, switch assembly, and elastomeric contact strips for the LCD and switch assembly are accessible and can be replaced as needed. Do not allow the LCD to get wet. Before installing a new LCD, make sure that all connector contact points are clean.

Caution

Cleaning

WWarning

To avoid electrical shock, remove test leads and any input signals before cleaning.

To clean the case, wipe it with a cloth lightly dampened with water and a mild detergent. Do not use abrasives, solvents, or alcohol.

Recommended Test Equipment

A list of recommended equipment for the performance test and calibration adjustment procedure is shown in Table 2.

Table 2. Recommended Equipment

	Equipment	Minimum	Recommended
		Specification	Model
	AC/DC Calibrator	DC Voltage: 0 to	5700A, or 5500A
		600 V
		Accuracy: ±0.25%
		AC Voltage: 0 to
		600 V
		Accuracy: ±0.5%
		Frequency: 50 to
		400 Hz
	Decade Resistor	Resistance: 1.0 to	Fluke 5500A
		40 MΩ
		Accuracy: ±0.25%
	Decade	Capacitance: 0 to	Fluke 5500A
	Capacitor	1.000 μF
		Accuracy: ±0.5%
	Thermocouple	---	Fluke 80 PK-1
	Wire K-Type
	Temperature	Accuracy: Certified	Fluke 80T-150U
	Probe	to ±0.2°C ambient
	Mercury	0.02°C resolution	Princo Model ASTM
			56C
	Thermometer
		0.05°F resolution	Princo Model ASTM
			56F
	Flask with cap	---	Dewar Flask

Do not touch the conductive edges of the elastomeric strips or the contacts on the switch assembly. If they are contaminated, clean them with isopropyl alcohol.

9.Reassembling the Meter is the reverse of disassembling it. After the Meter is reassembled, execute the Performance Test to confirm that the Meter is working properly.

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