Fluke 16 Service Manual

Multimeter with Temperature

Calibration Information

W

Warning

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.

®

16

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.

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

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.

Certification

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.

P $

1

16

µ

Multimeter with Temperature

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

Table 1. Specifications (cont)

Function Range Resolution Accuracy

f

(50 to 400 Hz)

E

J

K

4000 mV

4.000 V

40.00 V

300.0 V

400.0 V

600.0 V

4000 mV

4.000 V

40.00 V

300.0 V

400.0 V
600 V

400.0Ω

4.000 kΩ

40.00 kΩ

400.0 kΩ

4.000 MΩ

40.00 MΩ

1.000 µF

10.00 µF

100.0 µF
1000 µF
10000 µF

1

1

1 mV

0.001 V

0.01 V

0.1 V

0.1 V
1 V

1 mV

0.001 V

0.01 V

0.1 V

0.1 V
1 V

0.1Ω

0.001 kΩ

0.01 kΩ

0.1 kΩ

0.001 MΩ

0.01 MΩ

0.001 µF

0.01 µF

0.1 µF
1 µF
10 µF

±(1.9%+3)
±(1.9%+3)
±(1.9%+3)
NA
±(1.9%+3)
±(1.9%+3)
±(0.9%+2)
±(0.9%+2)
±(0.9%+1)
NA
±(0.9%+1)
±(0.9%+1)
±(0.9%+2)
±(0.9%+1)
±(0.9%+1)
±(0.9%+1)
±(0.9%+1)
±(1.5%+3)
±(1.9%+2)
±(1.9%+2)
±(1.9%+2)
±(1.9%+2)
±(10%+90)

typical

µ[ 0 to 200 µA 0.1 µA ±(1% + 2 counts)

\

(50 to 400 Hz)

Temperature

(Type K Thermocouple)

C

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.

2

3

2

0 to 200 µA 0.1 µA ±2% + 3 counts)

-10°C to 400°C
14°F to 75°F

-40°C to -10°C

-40°F to 14°F

2.000 V 0.001 V ±(0.9%+2)

0.1°C

0.2°F

0.1°C

0.2°F

±(1% + 0.8°C)
±(1% + 1.5°F)

±(5% + 1.5°C)

Typical
±(5% + 3.3°F) Typical

Table 1. Specifications (cont)

1

2

2

3

3

Specifications

Function Overload

f

E

J

2

L

µ[
µ\

1. 3 x 106 V Hz maximum.

2. ~2 kΩ input impedance up to 50 V. Impedance increases with input voltage to >300 kΩ 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 µA when recording µA 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 Capture

Detects opens or shorts of 250 µs or longer.

Protection

600 V dc

600 V dc

600 V dc <1.5 V dc <450 mV dc <1.5 V dc <500 µA

600 V dc 2.4-3.0 V dc 2.400 V dc 0.95 mA (typical)

600 V rms or dc <5 mV/µA >100 dB @ dc 50 Hz or 60Hz>50 dB @ 50 Hz or

600 V rms or dc <5 mV/µA >60 dB at dc, 50 Hz or

Input Impedance

(Nominal)

>5 MΩ <100 pF
Automatic Selection
and LoZ = >2 kΩ
<200 pF
(ac coupled)

>10 MΩ <100 pF
Automatic Selection

and LoZ = >2 kΩ
<200 pF

Open Circuit Test

Voltage

Burden Voltage Common Mode Rejection

2

2

Common Mode
Rejection Ratio

(1 kΩ Unbalanced)

>60 dB at dc 50 Hz or
60 Hz

>100 dB at dc, 50 Hz or
60 Hz

Full Scale Voltage

To 4.0 MΩ 40 MΩ

Ratio

60 Hz

Normal Mode

Rejection

>50 dB at 50 Hz or 60
Hz

Short Circuit

Current

Normal Mode

Rejection

60 Hz

.

3

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

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.

Cleaning

W Warning

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

AC/DC Calibrator DC Voltage: 0 to

Decade Resistor Resistance: 1.0 to

Decade
Capacitor

Thermocouple
Wire K-Type

Temperature
Probe

Mercury
Thermometer

Flask with cap --- Dewar Flask

Specification

600 V
Accuracy: ±0.25%
AC Voltage: 0 to
600 V
Accuracy: ±0.5%
Frequency: 50 to
400 Hz

40 MΩ
Accuracy: ±0.25%

Capacitance: 0 to

1.000 µF
Accuracy: ±0.5%

--- Fluke 80 PK-1

Accuracy: Certified
to ±0.2°C ambient

0.02°C resolution

0.05°F resolution

Recommended

Model

5700A, or 5500A

Fluke 5500A

Fluke 5500A

Fluke 80T-150U

Princo Model ASTM
56C
Princo Model ASTM
56F

4