Cal Test Electronics CT3684 User Manual Download Page 5

800-572-1028                                            caltestelectronics.com                                                            4

1  Introduction

1.1 Overview

Differential probes allow safe, accurate measurement between two 

voltage points where neither point is referenced to ground. The CT3684 

and CT3685 both offer 50 MHz bandwidth and can test up to ±700 V 

(DC + AC peak) ±1400 V (DC + AC peak) respectively. Compatible with 

oscilloscopes from all major manufacturers, the probes are powered by 

the included 9 VDC adapter.
Features:

 

z

50 MHz bandwidth (-3 dB)

 

z

Up to ±700 V (DC + AC peak) common mode (CT3684)

 

z

Up to ±1400 V (DC + AC peak) common mode (CT3685)

 

z

Attenuation settings of 10x (CT3684) and 100x (CT3685)

 

z

High accuracy (±1%)

 

z

High CMRR

 

z

Power indicator LED

 

z

9 VDC adapter, CT3723 (included)

 

z

USB power lead, CT4122 (optional)

 

z

Battery pack with 4 AA batteries, CT3729 (optional)

1.2 Initial Inspection

This probe is tested prior to shipment. It is therefore ready for 

immediate use upon receipt. An initial physical inspection should be 

made to ensure that no damage has been sustained during shipment. 

After the inspection, verify the contents of the shipment. The kit 

contains:

 

z

Differential probe

 

z

(2) Hook probes, black & red

 

z

User manual

 

z

9 VDC adapter, CT3723

Summary of Contents for CT3684

Page 1: ...CT3684 CT3685 User Manual...

Page 2: ...ot work alone when working with high voltages Inspect the Probe Inspect the probe and accessories for cracks and frayed or broken leads before each use If defects or damages are noted DO NOT USE the p...

Page 3: ...for Critical Applications This probe is not authorized for use in contact with the human body or for use as a component in a life support device or system Do Not Substitute Parts Do not install subst...

Page 4: ...or measurements in circuits of installation CAT III it should incorporate the use of fused test probes Compliance Statements Disposal of Old Electrical Electronic Equipment Applicable in the European...

Page 5: ...on mode CT3684 z z Up to 1400 V DC AC peak common mode CT3685 z z Attenuation settings of 10x CT3684 and 100x CT3685 z z High accuracy 1 z z High CMRR z z Power indicator LED z z 9 VDC adapter CT3723...

Page 6: ...uct Description 2 1 CT3684 CT3685 Description Output BNC cable 90 cm with 4 mm Banana Plug Ground Lead Hook Probes Probe Body Power On Off Switch LED Power Indicator Leads 50 cm Figure 1 Front Panel D...

Page 7: ...Optional Battery Pack If using the optional battery pack CT3729 the batteries supplied must be inserted into the battery pack and the pack attached to the probe See Figure 2 Figure 2 Replacing the Bat...

Page 8: ...example 7 A wave matching the test signal should display on the screen of the oscilloscope and this means this probe is working properly 3 4 Getting Started 1 Connect the hook probes to the leads 2 C...

Page 9: ...84 and 100 V div for the 100x probe CT3685 See Table 1 Vertical Scale on Oscilloscope Scope Input Impedance Probe Attenuation Setting Actual Attenuation Setting Vertical Scale Reading on the Oscillosc...

Page 10: ...ge DC AC peak 70 V 700 V Maximum Common Mode Input Voltage DC AC peak 700 V 1400 V Absolute Maximum Rated Input Voltage each side to ground 500 Vrms CAT I 1000 Vrms CAT II Input Impedance 1 6 M 7 pF e...

Page 11: ...s IEC 61010 031 CAT I CT3684 CATII CT3685 Specifications are subject to change without notice To ensure the most current version of this manual please download the current version from our website cal...

Page 12: ...ersons will not be covered by this warranty Cal Test Electronics reserves the right to discontinue models change specifications price or design of this device at any time without notice and without in...

Page 13: ...800 572 1028 caltestelectronics com 12...

Page 14: ...800 572 1028 caltestelectronics com 13...

Page 15: ...800 572 1028 caltestelectronics com 14...

Page 16: ...2016 Cal Test Electronics Part 450844 001 20161222...

Reviews: