Features of 7693A Automated Liquid Sampler

General Specifications

There are no General Specifications available.

Additional Specifications

[u]Chromatographic Performance[/u]
Sample discrimination: = 10% (1)
Reproducibility: Better than 0.3% RSD area reproducibility (2)
Response Variation: Less than 5% RSD in response factor variation (3)
Carryover: Less than 1 part in 100,000 carryover (40
Injection time: Fast injections are performed in less than 100 ms

(1) From cool on-column analysis of C10–C42; meets or exceeds ASTM 2887
(2) Chromatographic conditions for C10–C16
1 µL injection (5 µL syringe)
10 injections
1 sample wash; 6 sample pumps
Inlet: Split 100:1 (He); 250 °C; 3 mL/min (constant flow)
Column: HP-5MS – 30 m × 320 µm × 0.250 µm df
Oven: 180 °C isothermal
Detector: FID
(3) Chromatographic conditions for C14–C16
10 µL syringe
10 injections for each volume; injection volumes from 10 to 50%
2 sample washes; 6 sample pumps
3 solvent A and B washes post-injection
Inlet: Split 25:1 (He); 250 °C; 3.2 mL/min (constant flow)
Column: HP-5MS – 30 m × 320 µm × 0.500 µm df
Oven: 100 °C (1 min); 30 °C/min to 250 °C
Detector: FID
(4) Determined by residual analyte area measured in subsequent solvent blank (4 solvent A and 4 solvent B post-washes)

[u]Sample Injection[/u]
The 7693A injector provides a wide range of injection capabilities to provide maximum
flexibility:
Variable sampling depth: –2 to +30 mm above default
Pre- and post-injection syringe: 0–15 rinses for each of solvent A and B rinsing
Sample prewashes: 0–15 prewashes
Viscosity delay: 0–7 seconds
Preinjection sample pumps: 0–15 pumps
Minimum sample injection: 10 nL (with 1 µL syringe)
Maximum sample injection:
50 µL (with 100 µL syringe in standard tower)
250 µL (with 500 µL syringe and Enhanced Sample Handling Syringe Carriage)
Injection plunger speed: Fast/slow/variable
On-column injection mode: Automatic
Multiple injection mode: 1–99 injections of specified volume
Injection delay time: 0–1 minute (within multiple injection mode)
Preinjection dwell time: 0–1 minute
Post-injection dwell time: 0–1 minute
Solvent saver: Set at 10, 20, 30, 40, and 80% of syringe volume
Injection range: 1 to 50% of syringe volume in increments of 1%
Syringe size:
1, 2, 5, 10, 25, 50, and 100 µL maximum volume with standard syringe carriage
250 and 500 µL maximum volume with optional Enhanced Sample Handling Syringe Carriage

[u]Sample Management[/u]
Vial Handling
System supports neckless (shell) vials, standard 2 mL vials, and micro vial inserts
16 samples with injection tower and standalone turret
150 samples with injection tower and tray
Sampler tray positioned away from GC to minimize exposure to heat
Tray samples stored in 3 removable 5 x 10 racks
Racks are compatible with multi-tip pipettes
Solvent
4 mL solvent vials
2 × 4 mL for injector tower with standalone turret (usable solvent capacity of 4 mL)
10 × 4 mL for injector tower with transfer turret (usable solvent capacity of 20 mL)
Syringe Support
Up to 100 µL with standard syringe carriage
250/500 µL with optional Enhanced Sample Handling Syringe Carriage
Supports compatible liquid and gastight syringes
Sample Sequencing
Advanced sequencing with random access using Agilent software
Simple sequencing using the 7890A/6890 Series GC keyboard
Next sample overlap
Capability to run priority samples
Heater/Chiller Module
User installable
Heats or cools all 150 vials in the tray (temperature range 5–60°C)
Built-in sensor monitors average coolant temperature in plate
Uses aluminum vial racks to hold samples
Requires customer-supplied thermal bath recirculator
Heater/Mixer/Bar Code Reader
Single vial heating prior to injection (temperature range 35–80°C)
Single vial mixing prior to injection
Heating time and mixing time are fully programmable
Bidirectional mixing up to 4,000 RPM
Entire module is integrated into 150-position sample tray

[u]Method Programming[/u]
The 7693A system, equipped with two towers, a tray, a heater/mixer/bar code reader,
and Enhanced Sample Handling Syringe Carriage can perform liquid manipulation
including:
- Solvent addition
- Standard addition
- Internal standard addition
- Dilution
- Derivatization
- Quenching

[u]Physical Specifications[/u]
Weight
7693A injector 3.9 kg
7693A tray without options or accessories 6.8 kg
7693A tray with heater/mixer/bar code reader 7.1 kg
7693A tray with heater/chiller 9.0 kg
7693A tray with heater/mixer/bar code reader and heater/chiller 9.3 kg
Controller box for 6890A 5 kg

Height
Above bench surface of top of 7693A injector as mounted on 7890A 94 cm
Above bench surface of bottom of 7693A tray as mounted on 7890A 43 cm
Above bench surface of top of 7693A tray as mounted on 7890A 73 cm
Of controller box for 6890A 11 cm

Width
Extension of 7693A tray past left side of 7890A 45 cm
Width of controller box for 6890A 25 cm

Depth
Of 7693A tray with/without options, front to back 42 cm
Extension of 7693A tray past front of 7890A 2 cm
Of 6890A controller 31 cm

Technical and Environmental
Indoor use only in ordinary atmospheres
Altitude up to 4,300 m
Ambient operating temperature 15 to 35 °C
Ambient operating humidity 5 to 95%
Mains supply voltage fluctuations up to ± 10% of the nominal voltage
Pollution degree 2, Installation Cat II
7693A, ALS Controller, is rated for mains connection to 100–120 VAC or 220–240 VAC, 50/60 Hz, 180 VA

Safety and Support
Injector will not operate if not mounted on GC
Error indicators show the source operating failure
Flash memory allows product firmware enhancements to be uploaded via PC
Onsite repair is available for the 7693A injector and tray system
In the event of any instrument failures, Agilent's industry-leading Express Exchange* service can minimize downtime by shipping replacement sampler modules within hours
Contact sales representative to verify compatibility with software
* Not available in all countries